baber/WOPTO huggingface dataset:
Patent GB-376835-A (GB)
Title: Improvements in or relating to clutch-operated gears
IPC: F16H63/30
Filed: 1931-04-17
Abstract: 376,835. Change-speed gearing; operating clutches. FIPPARD, A. J., Hankow, Woodcote Avenue, Wallington, Surrey. April 17, 1931, Nos. 11502, 12678, 20976, and 25417. [Class 80 (ii).] In change-speed gearing of the lay-shaft type, the speed changes are effected by clutches operated through thrust bearings by non-rotary distensible devices and pressure air or liquid. The expansible device may consist of annular bellows 91, Fig. 6, supported on a fixed member 91<1> acting through a thrust bearing 93 to move a rotary friction or claw clutch member 92 into engagement with a like member on a loose gear, not shown. An arrangement is described with a ring of fixed pneumatic cylinders thrusting radially inwards ramps which thrust axially the ball bearing corresponding to the bearing 93, Fig. 6. In one form of the invention, a driving- shaft 1 may be connected directly through a clutch 14<1> to a driven shaft 2, or indirectly through clutches 14 and any pair of constantmesh gears 3, 4 or 5, 6 or 11, 12 or 7, 8 and a return pair 10, 9. Expansible devices 25 are arranged in pairs or fixed supports 24 between cone clutch members 14 rigid with loose gears such as 3, 5. When pressure air is admitted behind an annular piston 25, thrust is transmitted through a ring 23 of channel section and through a ball thrust bearing 30 to a slidable clutch member 21 rotating with the shaft 1. Clutch disengaging springs 33 are provided. The direct drive clutch 14<1> is similar. A clutch 14<2> by the disengagement of which the toothed gears are allowed to be at rest during direct drive comprises a main claw member 36 with an auxiliary relatively sliding friction member 37, the latter coming first into engagement with the wheel 10. The clutch 36, 37 may be replaced by a suitable one-way clutch. A compresser driven from a gear 53 drives air through a selector valve and on to the expansible devices 25 through nipples 40. A modified arrangement is described with the clutches and expansible devices on the lay shaft.
Patent GB-115255-A (GB)
IPC: G01B3/26
Abstract: 115,255. Wallace, G. March 30, 1917. Tools for setting - out work.-A device for marking the centres of round, square, oval, &c. bars comprises a tapered trough A formed with a central scribing slot B In operation the device it placed over the end or the bar and a mark made by a scriber inserted in the slot. The device is then turned through a right angle and a second mark is made, the intersection of the marks giving the desired centre. Specifications 5015/79 and 17249/95, [both in Class 106, Registering &c.], are referred to.
Patent GB-1130423-A (GB)
Title: Production of phosphates
IPC: C01B25/40
Filed: 1966-03-16
Abstract: 1,130,423. Ammonium polyphosphates. MONSANTO CO. 16 March, 1966 [16 March, 1965], No. 11546/66. Addition to 1,074,243. Heading C1A. An ammonium polyphosphate having the general formula H (n-m)+2  (NH 4 ) m P n O 3n+1  in which n is an integer greater than 10, m/n is between 0À7 and 1À1, and m has a maximum value of n+2 is produced under conditions of controlled water and ammonia vapour pressure, so that the solubility may be controlled. The ammonium polyphosphate may be prepared from a phosphate-containing material, an ammoniating agent and a condensing agent by heating them together at a temperature between 100‹ and 350‹ C. During the heating the pressures of ammonia and water over the reactants are carefully controlled, the greater the ratio of ammonia pressure to water pressure, the less the solubility of the polyphosphate. Equations are given to calculate the optimum pressures. Typical phosphate-containing materials are mono ammonium orthophosphate, diammonium orthophosphate, triammonium orthophosphate, orthophosphoric acid, condensed phosphoric acid (containing from 72 to 88% P 2 O 5  by weight), phosphorus pentoxide, and phosphorus oxyhalides. The ammoniating agent may be ammonia or an inorganic ammonium salt that contains a non-oxidizing anion such as halides, CO 3 <SP>2-</SP>, S<SP>2-</SP> and includes ammonium bicarbonate, ammonium hydroxide, ammonium orthophosphates and ammonium pyrophosphate. The condensing agents remove water formed during the reaction, examples being phosphorus pentoxide, phosphorus oxyhalides, urea-phosphate, phosphorus pentahalides and mixtures of these compounds. Combined ammoniating and condensing reagents are commonly used, these being compounds which can release ammoniacal nitrogen and function as a condensing agent. Examples are urea, ammonium carbonate, biuret, sulfamide, sulfamic acid, ammonium sulfamate, guanyl urea, methyl urea, formamide, amino urea, 1-3-diamino urea and biuret. The solubility of the ammonium polyphosphates formed can be controlled in the range 1 to 8 gm. per 100 c.c. They can be used as fire retardants, in plastic, textile or paint compositions, in synthetic detergents, or in fertilizers.
Patent GB-1505534-A (GB)
Title: Turbines and compressors
IPC: F01D11/10
Filed: 1975-03-20
Abstract: 1505534 Turbines; compressors MASCHINENFABRIK AUGSBURG-NURNBERG AG 20 March 1975 [21 March 1974] 11549/75 Headings F1C and FIT To reduce the vibrations induced in a gas or steam turbine or compressor, e.g. in rotor 4, by the circumferential flow component in the direction of rotor rotation of leakage flow through a labyrinth or proximity seal 5, e.g. between the rotor blade shroud 3 and the casing 2, means are provided upstream of, or in, the seal to eliminate, or reverse the direction of, this circumferential flow component, or to increase an oppositely directed component. As shown, inclined vanes 7a are fixed upstream of the seal on the casing 2 to direct the leakage flow in a counter-rotation direction. Again, axial vanes may be provided upstream or in the seal, Figs. 3a, 4, (not shown). Again, a blocking fluid, e.g. steam, may be directed at the seal through inclined jets (8), Fig. 7, (not shown). The seal may be between the rotor shaft and guide vanes 10.
Patent GB-541920-A (GB)
Title: Improvements in or relating to lens holding means
IPC: B24B9/14
Filed: 1940-07-11
Abstract: 541,920. Clamps for lenses ; grinding. KODAK, Ltd. July 11, 1940, No. 11555. Convention date, Oct. 25, 1939. [Class 97 (i)] [Also in Groups XXII and XXIII] Clamps holding a lens between them have substantially frictionless surfaces so shaped in relation to the surfaces of the lens that the lens moves under the clamping pressure until its optical axis coincides with the axes of the clamping surfaces ; the clamps may form part of apparatus for grinding the edge of the lens, for inspecting the edge of the lens of or its mount, or for assembling the lens in a mount. Fig. 2 shows cylindrical clamps 10, 11 having cupped ends forming rims 14 to engage a bi-convex spherical lens 15 ; the rims may be curved in radial section, and are substantially frictionless, so that, as pressure is applied by the clamps, the lens slips until the whole of each rim engages one of its surfaces, and its optical axis coincides with the axes of the clamps. Bi-concave spherical, cylindrical, toric, or other lenses may be similarly held, the rims being continuous or discontinuous, and, in all cases, such as to coincide wholly with a section of the lens surface normal to the optical axis when the axes coincide. Fig. 4 shows apparatus wherein the clamps 10, 11 carry the lens 12 by fluid-pressure means 26, and are rotated by gears 20, 21 so that grinding wheels 22, 24, 25 may respectively operate on the edge and form bevels; the edge may be ground eccentric to the axis by some known cam control means or by rotating about a line other than the optical axis. Fig. 9 shows edge-inspection apparatus comprising clamps 44, 45 and a microscope 49, the clamp 44 being rotatable by means of a knurled head 48. If the lens is mounted in a cell having an external tread, the clamp 44 may be carried by a thread of equal pitch so that the vertical position of the cell thread in the field of view of the microscope remains constant as the clamp is rotated. One clamp 60, Fig. 13, may be shaped to form a chuck having screw threads engaging the external threads of a mount 62 into which a lens 65 is to be co-axially secured, the mount being provided with a contact surface 64 engaging one lens surface and concentric with the external thread. The lens, when centred by the clamp 61, may be secured in the mount by cement or by a nut 66 having a resilient or malleable rim 69. Specifications 9964/01, [Class 97], and 538,333 are referred to.
Patent GB-228048-A (GB)
Title: Improvements in disintegrators for pulverizing sugar and other friable substances
IPC: B02C13/282
Filed: 1924-05-10
Abstract: 228,048. Baker Perkins, Ltd., and Prescott, W. E. May 10, 1924. Impact pulverizers. -In a disintegrator for pulverizing sugar and other friable substances and of the type comprising beaters rotating within a stationary casing comprising relatively-movable sections and baffles consisting of separate elements each pertaining to the respective casing sections, the sections are both relatively hinged and completely separable and the lower section is rotatable about the axis of the machine and capable of complete removal from the interior beating mechanism, with or without means for retaining the lower section in various positions of rotation. The apparatus comprises a cylindrical casing formed in two halves or sections b, b<1>, Figs. 1 and 2, the upper section b being mounted on the lower section b<1> by means of hinges or pivots b<2> in open-ended slots b<20> and secured by bolts d<16>. The casing is carried by means of trunnions d<5>, Fig. 4, engaged by bosses d<15> projecting from bearings d<1> extending from the base casting d<2>, and caps d<4> secured to the trunnions by bolts d<6> hold the casing in position. The baffles e are inserted in annular grooves in the sections b, b<1> and secured by means of screws e<3> and lock-nuts e<4>. The upper section b carries the feed-hopper f<1> from which the sugar &c. is fed down an incline f<2> by means of a worm f<3> driven by spur gearing f<4>, f<5> from a shaft f<6> driven by a belt f' from the beater-shaft h. A pipe or trunk fitted with a wire-gauge sieve communicates with the feed-opening and serves as an inlet for air, which is sucked through the casing by a fan g<2> on the discharge end of the shaft h. After removing the upper section b, the lower section b<1> can be turned around the shaft h and held in the desired position by a pawl i engaging a ratchet i<1> on the section b<1>. The pawl i has a tail i<2> under the action of a spring i<3>, and by turning a catch i<4> the pawl can be put out of action. The exterior of the casing is provided with gills or vanes d<3> for air cooling purposes, and each section is fitted with eye-bolts d<7> for attachment of lifting-tackle. The beaterarms h<2> on the drum h<1> on the shaft h work between the baffles e, and the shaft h may be driven by an electric motor a.
Patent GB-416126-A (GB)
Title: Improvements in wireless direction finding apparatus
IPC: G01S1/02
Filed: 1933-04-21
Abstract: 416,126. Directive wireless signalling. APPLETON, E. V., 30, Chesterford Gardens, Hampstead, London, BELL, L. H. BAINBRIDGE-, HERD, J. F., and WATT, R. A. W., Radio Research Station, Slough, Buckinghamshire. April 21, 1933, No. 11678. [Class 40 (v).] Relates to means for operating solely on the ground wave, to the exclusion of the reflected space - wave, when determining direction. Repeated impulses are transmitted for periods of one five-thousandth of a second separated by intervals sufficient to allow each signal and its reflected counterparts to be received before the arrival of the next signal-impulse. The critical minimum position can then be ascertained by observing the orientation point at which one impulse, i.e. that due to the direct wave is lost. Alternatively, the signals received by two frame aerials at right angles are applied to the control electrodes of a cathode-ray tube. The direct signal then produces a quasistationary " line " indication of the desired direction, the reflected signals being distinquished either as a stationary or variable, circular or elliptical pattern. Specifications 134,342, 252,263, [both in Class 40 (v)], and 397,524 are referred to.
Patent GB-437094-A (GB)
Title: Improvements in and relating to fire extinguishers
IPC: A62C8/00
Filed: 1935-04-16
Abstract: 437,094. Fire-extinguishers. POLLENS, M. GUIGNARD, Vallorbe, Vaud, Switzerland. April 16, 1935, No. 11710. [Class 47 (ii)] A powder extinguisher comprises a receptacle 1 closed at both ends and having at one end an inclined wall 4 arranged opposite to a discharge aperture 6. When the extinguisher is shaken, the powder 2 is projected against the wall 4 and deflected thereby through the aperture 6. The wall 4 may be flat, convex or undulated. When not in use, the aperture 6 is closed by an impervious, for example rubber, strip 7.
Patent GB-547215-A (GB)
Title: Improvements in or relating to sound recording systems
IPC: G11B7/00
Filed: 1940-07-16
Abstract: 547,215. Optical sound recording. RADIO CORPORATION OF AMERICA. July 16, 1940, No. 11773. Convention date, Aug. 5, 1939. [Class 40 (ii)] A negative record and a positive record both of the noiseless type are simultaneously recorded on the same film. The two records may be of different types so long as they are both noiseless. The negative is used for editing, and the positive for re-recording a final negative from which release prints are made. The apparatus used may be as shown in Fig. 1 and the combined records as shown. in Fig. 2. Specification 519,857 is referred to.
Patent GB-209357-A (GB)
Title: Improvements in, or relating to, lawn mowing machines
IPC: A01D34/42
Filed: 1923-05-02
Abstract: 209,357. Hadley, I. A. May 2, 1923. Lawn - mowers.- In a lawn-mower a semi-circular stay p is provided, led from the slotted brackets j carrying the back roller h to the handle c so that pressure may be applied to the rear of the machine to keep the rotary cutters inside a casing b down to the work. The upper end of the stay p, under normal conditions, moves in a guide slot in a bracket t connected to the handle, but, when the latter is slightly lowered, the upper end engages an adjustable stop z through which downward pressure is transmitted. The lower ends of the stay are sprung over smooth extensions of bolts m secured to the brackets j.
Patent GB-1456746-A (GB)
Title: Intrauterine contraceptive device
IPC: A61F6/14
Filed: 1974-03-18
Abstract: 1456746 Infra-uterine devices OUTOKUMPU OY 18 March 1974 [19 March 1973] 11899/74 Heading A5R An intrauterine contraceptive device in the general shape of a T, comprises a stem 3 having two outwardly extending generally linear side arms 1 each joined to the stem along a fexible, smoothly curved portion, the angle between each side arm and the stem normally being less than 90, the smoothly curved portions having a sufficient radius of curvature to prevent plastic deformation when the arms are bent into general alignment with the stem during loading into an inserter tube (5), Fig. 3, (not shown) and a resilient, compressible loop 4 at the end of the stem remote from the arms. The end of each side arm is in the form of a loop or a half-ball. Copper or alloys thereof may be included in the device in the form of wire or sleeves.
Patent GB-800979-A (GB)
Title: Improvements in bottle filling machines
Inventor: GODWIN CHARLES WILLIAM
IPC: B67C3/26
Filed: 1956-04-19
Abstract: 800,979. Bottling. AUTO-DAIRY ENGINEERS, Ltd. April 18, 1957 [April 19, 1956], No. 11915/56. Class 125(2). In vacuum filling apparatus in which the liquid supply tube B<SP>1</SP>, the lower end of which forms a valve, is lifted off a valve seat a at the bottom of a vent tube A<SP>1</SP> by the lifting of a bottle in engagement with gasket D<SP>1</SP> on tube B<SP>1</SP>, the bottle is guided into engagement with the filling head by a ring A<SP>2</SP> slidable on rods a<SP>1</SP> depending from the filling head. Vent tube A<SP>1</SP> screws into an upward extension b<SP>3</SP> fitting in the head by a spider b<SP>2</SP> rotation of which during fitting of the vent tube is prevented by an abutment b<SP>4</SP> in the head.
Patent GB-1363152-A (GB)
Title: Threedimensional device comprising a plurality of units
IPC: F21V1/00
Filed: 1972-04-27
Abstract: 1363152 Lampshades W J A KEMPSTON 27 April 1972 [28 April 1971] 11916/71 Heading F4R A lampshade is made from a plurality of units each of which consists of a central main panel 4 and outer wings 8, adjacent units being connected by joining members 16 each of which engages two adjacent wings of each unit. The member is preferably a disc 16 as shown in Fig. 2, which is adapted to interconnect three units, the wings being provided with slits 10 and cuts 12 to receive portions of the disc.
Patent GB-513887-A (GB)
Title: Improved conveyor device for machines for scutching or breaking flax, hemp or like textile plants
IPC: D01B1/10
Filed: 1939-04-20
Abstract: 513,887. Preparing fibres for spinning. AUTOMATIC FLAX PRODUCTION UNITS. April 20, 1939, No. 11959. Convention date, April 23, 1938. [Class 120 (i)] A device for conveying flax, hemp &c. through a scutching, stripping or breaking machine comprises a pneumatic-tyred wheel 1 and a co-operating belt 2 which is pressed into engagement with the periphery of the tyre by rollers 6 situated on opposite sides of the periphery of the tyre.
Patent GB-1004334-A (GB)
Title: Improvements in prefabricated gate or slide valves
Inventor: BIRCHAM ROWLEY JOHN
IPC: F16K27/10
Filed: 1962-03-29
Abstract: 1,004,334. Valves. NEWMAN, HENDER & CO. Ltd. March 28, 1963 [March 29, 1962], No. 12098/62. Heading F2V. [Also in Division B3] A method of assembling a parallel slide valve comprises forming in a length of circular crosssection open-ended tubing 4 oppositely disposed circular ports 11 in the wall thereof for inlet and outlet and thereby to constitute a valve body tube, welding a flange 5 to one open end of said body tube to constitute a bonnet flange, welding to each of two lengths of circular cross-section tubing 9 a flat, apertured valve seat 8 with the base thereof normal to the axis of its related tube to provide inlet and outlet tubes, assembling in succession to and from within said body tube the inlet and outlet tubes with the valve seats 8 thereof facing each other and the tube parts 9 projecting through the respective ports 11 in the wall of the body tube, positioning a jig between said facing valve seats 8 to maintain parallelism, securing said jig at both ends of said body tube, clamping said valve seat 8 to said jig by means of a through bolt 16 and clamping plates 17 in engagement with free ends of said inlet and outlet tubes 9 respectively, welding the inlet and outlet tubes to the exterior of the valve body coincident with the ports 11 therein and thereafter removing the jig. The valve seats 8 have gate guides welded thereto. After the jig has been removed stub tubes 10 are welded to the tubes 9, a bottom cover plate 6 is welded in position and strengthening straps are welded across the tubes 4 and 9. Sealing compound reservoirs 13 are provided, a valve gate 7 is fitted and a bonnet and screw mechanism for operating the gate is secured to the flange 5.
Patent GB-823879-A (GB)
Title: A machine for use in sharpening saws and convertible for use as a sawing machine
IPC: B23D63/10
Filed: 1957-04-15
Abstract: 823,879. Reciprocatory filing. WRIGGLESWORTH, S. March 21, 1958 [April 15, 1957], No. 12232/57. Class 83 (3). [Also in Group XXIII] A machine for sharpening saws S, or for sawing, comprises a slide 5 reciprocated by an eccentric 8 &c. relatively to a table 21 supporting the saw, means 14-17 for mounting a file 12 adjustably on the slide, means for varying the angle of the path of movement of the slide, means 22, 24 for positioning a tooth to be filed and for controlling feed of the saw so that it is advanced by increments equal to twice the pitch of the teeth, and means 32 for limiting the depth of cut. The body 1 of the machine carries the table 21 and adjustably supports a carrier 2 having a fixed guide 3 and an adjustable guide 4 between which the slide is reciprocated. An arcuate slot 13 (Fig. 6, not shown) in the body 1 receives a clamping bolt and permits angular adjustment of the carrier and thus of the file. The eccentric operates between rails 6, 7 on the slide and may be rotated by a power-operated hand-tool (not shown) mounted on a base attached to a block 39. The hand-tool drives a shaft 11 geared to the eccentric. The file is clamped, against the apex 14<SP>1</SP> of an opening in a bracket 14 on the slide, by a bridge-plate 15 bearing against the back of the file and secured by wing nuts 16<SP>1</SP>, 17<SP>1</SP>, which also adjust the angular disposition of the file about apex 14<SP>1</SP>. Screws 18, 19 adjust the lower end of the file. The saw is urged against a projection on the table by a spring- pressed plunger 36 in a post 35 supported from the body 1, and a handle 37, connected to the post by a spring 38, is used for applying pressure to the back of the saw. The depth-of-cut screw 32 co-operates with a fence 30, 30<SP>1</SP> pivoted at one end of the table and pressed by a spring 33 into the inoperative position depicted, in which it bears against the end of an opening in the table. The tooth positioning and feed controlling pin 24, in a slot 22 in the table, is carried by a member 25 which is biased by a spring 26 to draw the pin towards the blind end of the slot to an adjustable extent determined by the setting of a plate 27 secured by a clamp 28. Operation.-The saw is positioned as depicted in Fig. 3, with the pin 24 located in the first tooth space to be engaged by the file, and rocked about plunger 36 into engagement with the fence 30. During this movement, the pin 24 moves towards the mouth of the slot 22, guiding the tooth space towards the file. As or before the file enters the tooth space, the pin is withdrawn by contact between member 25 and a cam 29 and returned by spring 26. After completing the filing operation in the first tooth space, the saw is rocked back until the pin springs up in the third tooth space. When the alternate tooth spaces have been worked, the inclination of the carrier 2 is changed and the other spaces worked.
Patent GB-1350123-A (GB)
Title: Wheel chairs
IPC: F16C17/03
Filed: 1971-04-29
Abstract: 1350123 Wheel chairs SUOMEN VANUTEHDAS-FINNWAD Ltd OY 29 April 1971 [29 April 1970 27 Nov 1970] 12276/71 Heading B7B Telescopic handrails are supported at one end by a wheel chair to facilitate sitting down and getting out thereof. The handrails may be hinged or rotatably jointed to the wheel chair and have grips, such as rubber tips or hooks, at their outer ends. In a preferred embodiment, Figs. 4, 6 the rails are connected by a ball joint 17 to a tube 11 of the chair which telescopes in a tube 12 and secured therein by a butterfly screw 24. The rail is secured at its other end in a spring clamp comprising a discontinuous ring which is tightened by a screw 16. The outermost extension part of the handrail may be provided with a wheel. The handrails in combination with corresponding detachable sides of the wheel chair may be used as crutches or in combination with an ell stick member may perform the function of an ell stick.
Patent GB-513968-A (GB)
Title: Improvements in rear-engine motor vehicles
IPC: B62D35/00
Filed: 1938-04-25
Abstract: 513,968. Cooling vehicle motors. ZAVODY RINGHOFFER - TATRA AKCIOVA SPOLECNOST. April 25, 1938. No. 12315. Convention date, April 28, 1937. [Class 79 (iii)] In motor vehicles having a streamline body and air-cooled rear engine, the latter is cooled by the provision of vertical slits 3 in the side walls of the body behind the rear windows, the inner wall of an air passage from each slit to the engine being formed by continuing a portion of the body side surface 2 in a streamline curve bending gradually inwards from the main body surface, whilst the outer wall 5 is formed by continuing the body surface beyond and above the slit without any external projections. The forward edge of the outer member of the slit may be bent outwardly at 6 to increase the amount of air passing.